John wolf



(No. Model.) I

CLOTH NOTGHING DEVICE.

' Nrrn STATES PATENT OFFICE.

JOHN WOLF, J R., OF CINCINNATI, OHIO, ASSIGNOR TO THE WOLF ELECTRICAL PROMOTING COMPANY, OF SAME PLACE.

CLOTH-NOTCHING DEVICE,

SPECIFICATTON forming part of Letters Patent N0. 528,216, dated OCtOber SO, 18941:.

Application filed May 31, 1894. fierial No. 1 i N m dem but more particularly to such as are used for notching a number of superposed layers of cloth.

Primarily the object of my invention is to provide a simple, compact and inexpensive device capable of cutting a notch and holding the material by the same operation.

With this and other objects in view the invention consists in the construction and combination of the several parts as will be more fully hereinafter described and then defined in the claims at the end of the description.

Reference being had to the accompanying drawings forming a part of this specification, Figure l is a vertical sectional side elevation on the line I-I of Fig. 2, illustrating the device in position for use. Fig. 2 is a sectional plan on the line IIII of Fig. 1. Fig. 3 is a sectional side elevation of the lower portion of the device showing the plunger partly depressed and in a position to have the knife either secured to or removed fromthe plunger, and Fig. 4 is a sectional front elevation of a slightly modified form of notcher, illustrating the knife depressed to cut the notch in the cloth.

- In the drawings A designates a foot-plate supporting a hollow standard B, which is preferably formed integrally with the foot-plate.

Adapted to slide within the hollow standard is a rod or plunger C preferably slotted at its lower or inner end to receive a knife or cutter (3; the said knife being secured to the plunger by means of the screws 0, and extending outwardly through a slot 0 of the standard sufficiently far to cut a notch in the cloth when the plunger is depressed, the cloth being placed in the position shown in Figs. 1 and 4.

Secured to the outer end of the plunger is a handle 0 preferably rounded to formaconvenient rest for the hand while depressing said plunger. The handle is provided with a hollow stem to receive the end of a spiral 5 spring 0 which surrounds the rod C and extends between said handle and the end of the hollow standard B for the purpose of returning the plunger to its normal position after being depressed. t

D is a gripping sleeve-slidingly held upon the standard 13 and has a slot d extending part of its length through which the knife 0 passes, the upper portion of the slot serving as an abutting surface for the upper edge of the knife to return the said gripping sleeve to a raised position as the spring 0' returns the rod or plunger C to its normal position. The sleeve D has extending outwardly therefrom agripping jaw (1', adapted to grip and retain the cloth while the same is being notched, as shownin Fig. 4:. This gripping sleeve is yicldingly held upon the standard B by a spiral spring d extending from thegripping jaw d, to the under side of the handle a and which surrounds a rod 61 secured at one of its ends to said handle and having its other end passed through a tubular stem or upright d secured to and extending upwardly from the gripping jaw d, to serve as a guide for said spring. The spring d is of suiiicient strength .0 carry the sleeve as the plunger is depressed and to retain the cloth in a fixed position. This arrangement permits the plunger to be carried downwardly as the plunger is depressed and still allows the plunger to descend to out the notch after the cloth has been engaged and held by the jaw of the gripping device.

The standard B has a collar E preferably 0 adjustably secured to the standard for the purpose of limiting the movement of the sleeve D upon said standard.

To remove or secure the knife to the plunger without removing or disconnecting parts of the device, I provide an aperture f in the standard 13, as shown in Fig. 3, wheret by when the plunger is depressed, as illustrated, and the gripping sleeve held above the same, the screws 0 which secure the knife to 109 the plunger may be removed by inserting the. end of a screw driver into the aperture f, the

the 5 other screw or screws being removed in the same manner.

The operation of the device will be readily understood from the foregoing description.

It will be seen that by the arrangement described the cloth will be held and a notch cut in the edge thereof by simply depressing the plunger 0.

I may, if desired, use such construction as shown in Fig. 4, in which the base, standard, plunger and operating device for same are like those disclosed in the preferred form. The sleeve, however, is provided with outwardly extending lugs or projections g preferably located on opposite sides of said sleeve and each having an aperture through which pass the rods g secured at one of their ends to the handle and provided at the lower end of each with a pin 9 which serves to prevent the rod from being disengaged from the aperture of the projection-g. The rods 9' have each a spiral spring g surrounding same to yieldingly hold the sleeve upon the standard B for the same purpose as set forth in the other figures.

vInstead of the knife serving to return the sleeve to a raised position, as shown in the preferred form, the pins 9 in the ends of the rods g accomplish this by engaging the under side of the projections g, as the plunger 0 is returned to its normal position.

I might arrange the spring 01 and.aguide therefor in the rear of the sleeve D, instead of in' the front, if so desired; and other changes may be made without departing from the spirit of my invention.

Having thus fully described my invention, what I'claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a notcher, the combination with a hollow vertically slotted standard, of a plunger or rod working in said standard, a knife arranged on one end of the plunger and passing through the slot of the standard, a gripping sleeve slidingly held upon the standard, a spring yieldingly connecting the sleeve to the plunger, together with another spring tending to keep the plunger in a raised position, whereby both plunger and sleeve are adapted to be operated simultaneously to grip the material and cut the notch by a single operation, substantially as described.

2. In a notcher, the combination with a hollow standard having a vertically arranged slot therein, of a plunger normally pressed upwardly by a spring, and carrying at its lower end a knife or cutter extending outwardly through a slot in the standard, a sleeve carrying a gripping jaw and slidingly held upon said standard and provided with a slot for a part of its length for the passage of said knife, together with a yielding connection between the sleeve and the plunger, whereby both plunger and grippingsleeve may be 0perated at the same time, substantially as described.

3. Anotchercomprisingastandard,aspringpressed knife-carrying plunger having a handle on its outer end, in combination with a sleeve slidingly held upon the standard and provided with a slot for the passage of the knife of the plunger and a jaw to grip the material, atubularstem or upright arranged upon the jaw of said sleeve, a rod secured at one of its ends to the handle and having its other end entering the tubular upright, together with a spring arranged around the upright and rod and extending between the jaw and handle, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN WOLF, JR.

Witnesses:

J 0s. H. LITTELL, DAVID WERTHEIM. 

